Lifting-jack.



A. C. STEIN.

LIFTING JACK.

APPLIOATION FILBD JUNE20,1913.

1,099,405. Patented June 9, 1914.

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WITNESSES: 5NVENTOR. IN

770, ALVA C TE ALVA C. STEIN, OF WORTHINGTON, OHIO.

LIFTING-JACK.

Speciflcation of Letters Patent.

Application filed .Tune-20, 1913.

Serial No. 774,?63.

To aZ whO'mi it may concern: Be it known that I, ALVA C. STEIN, a ctzenof the United States, residing at W0rth-` as used in connection'withstreet railways and that type ofear's, it will of .course be understoodthat the invention is equally applicable for use in connection withother vehicles, whether the motive power is carried by the' vehicle, orapplied from an extraneous source. i

The primar object of th'e invention, as will be readi y understood, isto provide each vehele with an efficient means operated from aself-contained source, for the rapid and `facile restoration tothe`railway track of a derailed car.

The invention consists in certain novel combinations and arrangements ofpart, carried by the car and normally out of operation, by which thederailed car may be lifted vertically from the grourd and then shifted,laterally into alinement with the rails, and lowered directly onto therails, and these Operations are accomplished through devices aetuatedfrom motive power carried by the car.

In theaccompanying drawings ,I have illustrated one complete physicalembodiment of my invention applied to an electric ear and constructe'daccording to the best mode I have so far devised for the practicalapplication of the principles of the invention.

.In the drawingsz--Figure-l is a cross section of a car(conventionalized) showing in side elevation my invention appliedthereto, the ear in proper position on the rails, and the lifting jackout of commission. Fig. 2

` is a plan view of the. underside of the working parts of the device,the motor, and the .beses of the jacks being omitted for convenience ofillustraton Fig. .3 is an enlarged detail view snowmg the underside of aportion of Fig. 2, with a portion of the -motor illustratedanditsconnected gearing.

Fig. 4 is a side elevation of a frament of a street railway car toillustrate t e position Patented June 9, 1914.

of the lifting jack between the end of the i car and its traction wheel.Fi 5 illustrates a derailed car, lifted from the ground by the ack andready to be shifted laterally. Fig. 6 llustrates the same car shifted tothe lateral limit ot' the jack; to roperly replace the car it must againbe lowered, the jacks shifted, the car again raised, and' then shifteduntil the wheels aline with the rails. Fig. 7 is an enlarged transversesection, showing a shifting roller, its support and its track. Fig. 8 is'a similar View showing the fixed nut. Fig. 9 is an enlarged detal 'ofthe1 vertical adjusting mechanism of the ac In the preferred embodimentof my invention I have illustrated the 'lifting jack in connection withan electrie car A having the usual wheels B and axle C, and the wheelsare adapted to run in the rooved-rails D of suitable 'or usual type.hile only one lifting jack is illustrated, at the end of a car, it willbe understood that a car may be equippcd with a lifting jack at each endif desired, and the location of the jack-may also be varied to suitcircumstances, construction of cars, framin etc.

In equipping cars wit ,my invention '1 utilize a metallic plate 1 whichis rigdly Secured to the underside of the car and extends transverselythereof. The plate may be bolted to the underframing or beams of thecar, and is held immovable in relation thereto. A series of perforatedears 2 are located at each side of the plate 1. These ears areperforated and at their lower ends formed with lugs 3, the whole beingintegral with the plate 1. The perforatedears are arranged n pairs andare designed to afl'ord a hearing for the pintles fi: of a series ofrollers 5. Approximately midway its length the late is provided with aninte al lug 6, per orated and threaded, and o suflicient size andstrength to perform the function of a fixed nut in connection 'with ascrew r acting with the luge 3 of the plate'to confie and guide the,movement of the parte.

The fixed nut 6 on the plate 1 projects through a center slot 11 in thebeam and this slot is long enough to permit necessary movement of theparts e. the beam and plate with relation to each other. When thelifting jack is in operative position the beam 8 is Suspended on a pairof pedestals 12, 13, each of which is provided with a screw bar 14,15.These screw bars 'are moved through the medium of gear or worm wheels 16and 17 which are located between the ends of the beam and a perforatedhearing bracket 18, 18, integral with the beam and'located directlybelow the perforated end thereof, so that the worm wheels are confinedand revolve between the end of the beam and one of the brackets. Theworm gears may be revolved independently, and each one has an actuatingbar as 19 and 20 with a worm 21 and 22, the worm 21 engaging the wheel16 and worm 22 engaging the wheel 17. These bars are supported at theunderside of the beam in hearing lugs 23 and each bar is equipped with adriving gear as 24:, 25. In Fig. 3 it will be seen that the screw-bar 7also has a gear wheel, 26, and' these threewheels 24., 25, and 26 arelocated in position to mesh with along gear 27 in the driving shaft 28of the motor 29. The motor 29 is Secured at the underside of the beam,and isthus in'position to supply motive power for operating the devicesto lift the car vertically and also to Shift it, after being lifted toproper' height, laterally. Shifting rods 30, 31, 32, are provided forshifting the several gear wheels into or out of mesh with the long gear'on the motor shaft, and for convenience these rods may be operated fromthe same-side of the car. In Fig. 3 it will be seen that the worm wheelson the vertical screw bars maybe actuated simultaneously, or either ofthem may be actuated 'inde- V pendent of the other. If required thevertical screw bars may extend up through open- 'ings in the car floor,in a location where they will not interfere with other arrangements ofparts of the car.

tor '29 and the gears 24, 25 are moved to engage motor gear 27 in orderto lower the pedestals of the jacks. If the surface is irregular oruneven, one of the j acks may be` lowered below the other. When thepedestals are in proper supporting position, the

motor is reversed, and the car is raised or lifted by 'the describedconnections sufllciently to permit the bodily shifting of the car. Thetwo gears 24: and 25 are now Shifted out of mesh and the gear 26 isshifted into engagement with the gear 27. The motor now `turns the screwbar 7 and by its engagement with the threaded, fixed nut 6 of the plate1, the car is shifted until it reaches a position with the wheels overthe rails. The lateral Shift is then cut out, and the lowering devicesare brought into operation, the motor and gear co-nnections being againutilized to lower the car to the tracks. 'After the car is replaced, thejack pedestals are 'raised into normal position, as shown.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is The combination with a car andpermanently fixed plate extending from side to side thereof and havingan integral nut, perforated ears, rollers in the ears and guide lugs onthe ears, of a beam supporting the plate through the rollers, a screwbar mounted on the beam -engaging said nut, side flanges on the beamengaging 'said lugs, means for lifting the beam and plate, and a motoroperatively connected with the screw bar to Shift the car laterallyrelative to `the beam.

In testimony whereof I afiix my signature in presence of two witnesses.

ALVA C. STEIN. Witnesses:

C. M. SHIGLEY, Gr. A. WEAVER.

copies of this patent may be obtained for five cents each, by addressngthe Commissioner of Patents;

i Washington, D. G."

